//////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) 2015, John Haddon. All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are
//  met:
//
//      * Redistributions of source code must retain the above
//        copyright notice, this list of conditions and the following
//        disclaimer.
//
//      * Redistributions in binary form must reproduce the above
//        copyright notice, this list of conditions and the following
//        disclaimer in the documentation and/or other materials provided with
//        the distribution.
//
//      * Neither the name of John Haddon nor the names of
//        any other contributors to this software may be used to endorse or
//        promote products derived from this software without specific prior
//        written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
//  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
//  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
//  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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//  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//////////////////////////////////////////////////////////////////////////

#include "GafferScene/Private/IECoreGLPreview/ObjectVisualiser.h"

using namespace IECoreGLPreview;

ObjectVisualiser::ObjectVisualiser()
{
}

ObjectVisualiser::~ObjectVisualiser()
{
}

//////////////////////////////////////////////////////////////////////////
// Factory
//////////////////////////////////////////////////////////////////////////

namespace
{

using ObjectVisualisers = std::map<IECore::TypeId, ConstObjectVisualiserPtr>;

ObjectVisualisers &objectVisualisers()
{
	static ObjectVisualisers v;
	return v;
}

} // namespace

const ObjectVisualiser *ObjectVisualiser::acquire( IECore::TypeId objectType )
{
	const ObjectVisualisers &v = objectVisualisers();
	while( objectType != IECore::InvalidTypeId )
	{
		ObjectVisualisers::const_iterator it = v.find( objectType );
		if( it != v.end() )
		{
			return it->second.get();
		}
		objectType = IECore::RunTimeTyped::baseTypeId( objectType );
	}

	return nullptr;
}

void ObjectVisualiser::registerVisualiser( IECore::TypeId objectType, ConstObjectVisualiserPtr visualiser )
{
	objectVisualisers()[objectType] = visualiser;
}
